<?php


namespace Mslynn\Live\Block\admin\Filed;
use Magento\Config\Block\System\Config\Form\Field\FieldArray\AbstractFieldArray;
use Magento\Framework\DataObject;
use Magento\Framework\Exception\LocalizedException;
use Vendor\Module\Block\Adminhtml\Form\Field\TaxColumn;



class Lunbo extends  AbstractFieldArray
{
    protected function _prepareToRender()
    {
        $this->addColumn('lunbo', ['label' => __('text'), 'class' => 'required-entry']);
        $this->_addAfter = false;
        $this->_addButtonLabel = __('Add');
    }

}